Knoxville Weather Forecast

    • 66
    • 79

    Chance Rain Showers

    • 57
    • 81

    Partly Sunny

    • 64
    • 83

    Chance Rain Showers

    • 63
    • 85

    Chance Rain Showers

    • 68
    • 84

    Chance Rain Showers

    • 65
    • 90

    Rain Showers Likely

Today 9 Sep Knox

Mostly cloudy. Showers with a chance of Thunderstorms early this Morning, then a chance of Showers with a slight chance of Thunderstorms this afternoon. Cooler with Highs in the upper 70s. West Winds 5 to 10 Mph. Chance of rain 80 percent.

Tonight 9 Sep Knox

Mostly cloudy. A slight chance of Showers after midnight. Lows in the mid 60s. Northwest Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Knoxville Temperature Statistics

September Temperature

Galesburg Municipal Airport (7.5 miles)

  • Lowest 7 September, 2026

    60.1 °F
  • Average September

    79.1 °F
  • Highest 3 September, 2026

    93.6 °F

Climate (2021–2026)

Galesburg Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    41.8 °F
  • Average 2021–2026

    52.2 °F
  • Average High 2021–2026

    62.5 °F
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